Hands-on exercise · Fillable PDF
The minimal harness
The signup test passes. The invalid address still reaches the database.
Run three versions of a sample signup service. Spot the false positive and check that the fix still accepts a valid address.
Email me the PDF
Get the download link in your inbox.
Your address is used to send the PDF and notify Florian of your request. Your address is kept for up to 30 days for this request.
Contact me for the PDF
Inside the PDF
You only need Node.js and a terminal. Fill in both worksheets directly in the PDF or print them out.
- The starter file and test command
- Three variants to run and an illustrated answer key
- A prediction worksheet and a debrief checklist